12V 5A SMPS Switching Power Supply

Overview

The 12V 5A Switching Power Supply is a high-efficiency regulated power source that converts standard AC mains power (110V/220V) into a clean, stable 12V DC output. Encased in a sturdy, ventilated aluminum housing, it is built to dissipate heat effectively without the need for a noisy fan. This unit is a favorite for hobbyists building 3D printers, CNC machines, or sophisticated home automation hubs where multiple 12V components need to be powered simultaneously.

Key Features

• Industrial Build: The “honeycomb” aluminum shell provides excellent heat dissipation and protects internal components.

• Voltage Adjustment: Includes a built-in “VADJ” trimmer to fine-tune the output voltage (perfect for compensating for voltage drops over long wires).

• Safe & Reliable: Features integrated protection against over-voltage, overload, and short circuits.

• Dual Input: Selectable input voltage (110V or 220V) via a manual switch to suit your local power grid.

• High Efficiency: Modern switching technology ensures minimal energy loss and low heat generation compared to traditional transformers.

Technical Specifications

Wiring Terminals 

1. L, N: AC Power Input (Live and Neutral)

2. GND (Earth Symbol): AC Ground (Earth)

3. -V: DC Power Output Negative

4. +V: DC Power Output Positive

5. +V ADJ: Output Voltage Adjustment Trimmer